class Container {
    static of(value) {
        return new Container(value)
    }
    constructor(value){
        this._value = value
    }
    map(fn){
        return Container.of(fn(this._value))
    }
}
class Maybe {
    static of(value) {
        console.log(value)
        return new Maybe(value)
    }
    constructor(value){
        this._value = value
    }
    map(fn){
        return this.isNothing() ? this :Maybe.of(fn(this._value))
    }
    isNothing(){
        return this._value === null || this._value === undefined
    }
}
module.exports = {Container, Maybe}